CdSe/ZnS quantum dots, QD- organic molecule assemblies, photo-induced dissociation, fluorescence sensor " />

FLUORESCENCE LIFETIME OF CdSe/ZnS QUANTUM DOTS AND THEIR COMPLEXES WITH ORGANIC MOLECULES IN THIN POLYMER FILMS

A. V. Baranov, A. O. Orlova, E. V. Ushakova


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Abstract

 

The influence of laser light on fluorescence intensity and lifetime of CdSe/ZnS QDs and their complexes with organic molecules (PAN) in polymer matrix is discussed. The process of photo-induced dissociation of assemblies and self-fluorescence of QDs can occur in these films. Fluorescence intensity and lifetime dependence on laser power and laser energy are investigated. Possible application of QD/PAN assemblies as fluorescence nano-sensor is considered.

Keywords:   CdSe/ZnS quantum dots, QD- organic molecule assemblies, photo-induced dissociation, fluorescence sensor

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